Dental materials based on metal oxide clusters
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United States of America Patent
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Sep 5, 2006
Grant Date -
Jan 2, 2003
app pub date -
Jan 18, 2002
filing date -
Jan 19, 2001
priority date (Note) -
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Abstract
Dental material containing a cluster according to the general formula [(M.sup.1).sub.a(M.sup.2).sub.bO.sub.c(OH).sub.d(OR).sub.e(L-Sp-Z).sub.f] (I) in which M.sup.1, M.sup.2, independently of each other, stand in each case for a metal atom of the IIIrd or Vth main groups or the Ist to VIIIth sub-groups of the periodic table; R is an alkyl group with 1 to 6 carbon atoms; L is a co-ordinating group with 2 to 6 complexing centres; Sp is a spacer group or is absent; Z is a polymerizable group; c is a number from 1 to 30; d, e, independently of each other, are in each case a number from 1 to 30; f is a number from 2 to 30, any charge of the cluster (I) present being equalized by counterions.
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